About Mariner
From Steam Workshop"The Mariner is a versatile attack submarine equipped with a heavy railgun and full fabrication suite. Though its reactor requires battery assistance for high-speed maneuvers, its small compartments…
"The Mariner is a versatile attack submarine equipped with a heavy railgun and full fabrication suite. Though its reactor requires battery assistance for high-speed maneuvers, its small compartments make it exceptionally resilient to sudden hull breaches."
The Mariner’s internal room decoration is heavily based on the “Wallaby,” a vanilla ship. (Props to NotWendy.)
The Mariner is built with a balanced vanilla experience in mind. As a Tier II attack submarine, it is a slightly better alternative than submarines in the same class and tier, but its price reflects that as well.
The wiring on the Mariner is similar to vanilla submarines and is unlocked so it can be modified by your trusted electrician.
The Mariner is meant to be used only in a private campaign run, but I thought it would be nice to share it, so I shared it.
The sub should provide a different experience while still feeling vanilla-like, thanks to its unique layout.
Highlights
From source dataFootprint
Rated a light load on a server.
Last update
Its author last shipped an update 7 mo ago.
Mariner on Nxeon
From our catalogue- One-click install
- Not available. One-click install isn't available for this game's mods yet. Download it and upload it to your server in Files.
- Server load
- light
- Smallest plan we suggest
- Barotrauma — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 2026-03-20, released 2026-03-20
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Workshop |
From 1 recorded build of Mariner.
Run Mariner on a Barotrauma server
Deploy a server above, then upload the file in Files.
What kind of mod it is
From the catalogVehicles & ships
Cars, boats, aircraft, ships and other things to drive or fly.
Compatibility
- Game
- Barotrauma
Verified at the source
- ✓Steam WorkshopOfficial listing, checked 2026-10-10Open ↗
- ✓AuthorINV, as published on Steam Workshop
- ✓LicenseNot published by the sourceFree
